Improvement in car-couplings



Patented .luly 20,1375.

lWITNESSES @QM UNITED STATES PATENT OFFICE.

FRED L. OLIVER, OF FRIENDSHIP, NFV YORK.

IMPROVEMENT lN MlLK-STRAINERS.

Specification forming part of Letters Patent No. 165,858, dated July 20, 1875; application tiled May 17, 1875.

To all' whom 'it may concern:

Be it known that I, FRED L. OLIVER, of Friendship, in the county of Allegany and State of New York, have invented a new and Improved Milk-Strainer, of which the following is a specification:

The strainer is constructed of funnel shape, adapted to cover the entire top or opening oi' a can or other vessel, and is constructed with an annular tlange to tit within the mouth ot' the can. The funnel terminates below in a cylindrical nozzle covered at bottom with wire-gauze, above which is placed a removable diaphragm of perforated sheet metal, to protect the gauze and to arrest the larger matters which are to be strained ont of the milk.

In the accompanying drawing, Figure 1 is a plan or top view ot' the device. Fig. 2 is a vertical section 0i" the same as applied to a milk-can in readiness for the reception of milk. Fig.3 is a vertical section, showing the strainer in its reversed position to constitute a cover. Fig. 4 is a perspective view of the removable preliminary strainer.

A ma) represent a milk-can ot' common form. B O represent, respectively, the body and neck or nozzle of a funnel, at the bottom of which is secured a web or sheet, D, ot' wire' gauze. E represents an annular flange, permanently secured to the under side of the funnel B, and adapted to t within the mouth or top ot' the can A. The removable preliminary strainer (shown in Fig. 4, and in position in Figs. l and 2) consists of a plate, F, ot' perforated sheet metal, a ange, G, attached thereto and supporting it at the necessary height above the gauze D, and a handle, H, for removing and applying the said preliminary strainer. It will be seen that the parts are so proportioned that the preliminary strainer F is supported within the neck or nozzle C of the funnel, at a sutlicient distance below the outer margin thereof to prevent the milk from being carried up the opposite side of the inclined funnel B when poured in from one side. This dispenses with the necessity of guards or checks sometimes provided for this special purpose. The perforated sheet-metal strainer F arrests all the larger particles which are to be strained out ot' the milk, and protects the wire-gauze D from sudden or heavy pressure when the milk is poured into the strainer. The wire-gauze D is thus preserved from injury, and, receiving the milk uniformly over its entire surface, passes the same into the can with great rapidity.

I am thus enabled to use a wire-ganze strainer sufficiently fine to thoroughly cleanse the milk, while it does not impede the straining operation ineonveniently.

The milk having been strained into the can, it is important that it shall be fully exposed to the air while parting with its animal heat. To permit the necessary ventilation for this purpose, and, at the same time, to protect the milk in the interior of the can from dust and im purities, the strainer is employed as a cover, in the manner illustrated in Fig. 3. The ne wire-gauze I) affords free and thorough venti lation, while, at the same time, it prevents the entrance of' the slightest dust. Any dust or other impurities which may settle on the gauze I) or other part ofthe bottom ot the inverted strainer are, of coni-se, readily washed o' when the strainer is removed for the purpose ot' placing the permanent cover on the can.

The flange E tits the mouth of the can tightly enough to prevent the loss of milk in the event 0i' upsetting or sudden movement ot' the can.

The following is claimed as new:

l. A funnel-shaped strainer, B C D, with an annular iiange, E, attached to its under side, and tightly fitting the interior of the mouth ot' the can A, as and for the purpose set forth.

2. The removable preliminary strainer F G H, constructed as described, and inserted below the margin ot' the cylindrical neck C of the funnel, for the purposes set forth.

FRED L. OLIVER.

Witnesses:

E. B. WINGATE, ARTHUR B. BowLEY. 

